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Water Quality Lab: Units That Work

Convert measurement units and use ratio reasoning to plan water samples, testing supplies, and equipment use in a community science lab.

Grade 6MathInteractive · Printable

Aligned to6.RP.A.3.d

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What’s included

Single worksheet
Auto-graded online
1 Common Core standard
Printable answer key
14 questions
Classroom-ready

Details

Format: Interactive · Printable
Grade: Grade 6
Subject: Math
Question types: Fill in the blank, Multiple choice, Short answer

About this worksheet

What students practice

Students use equivalent ratios to convert units of length, mass, volume, and time.
Students change units when multiplying or dividing quantities in water-testing situations.
Students justify measurement comparisons by expressing quantities in the same unit.

How to use

Use after introducing conversion ratios. Have students show their ratio reasoning on separate paper, then discuss how matching units prevents lab errors.

Curriculum

Common Core standard covered

6.RP.A.3.d

Use ratio reasoning to convert measurement units and to change units when multiplying or dividing quantities.

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Water Quality Lab: Units That Work

Use conversion ratios to plan samples, supplies, and testing time.

Read the Lab Records

Use the conversion reference throughout the worksheet. Show your ratio reasoning on separate paper.

A community science lab checks water samples collected by local volunteers. Staff must match units before comparing measurements or planning tests.

Lab Conversion Reference
Larger unit	Equivalent amount
1 liter (L)	1,000 milliliters (mL)
1 kilogram (kg)	1,000 grams (g)
1 meter (m)	100 centimeters (cm)
1 minute (min)	60 seconds (s)
1 hour (h)	60 minutes (min)
1 inch (in.)	2.54 centimeters (cm)